P & Q are two points at the same distance and in the same horizontal plane form a current carrying vertical conductor. The point P is located towards the west and the point Q is towards the east. The current is vertically downwards. If BP & BQ be the net magnetic fields at P & Q then :
A
BP=BQ
B
BP>BQ
C
BP<BQ
D
BP=2BQ
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Updated on : 2022-09-05
Solution
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Correct option is A)
For in-finely long current carrying conductor;
⇒B=4πaμoI
=Bαa1
∵ distance from conductor of both points are same. so, magnetic field at both points are equal.
⇒BP=BQ.
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